A field investigation was carried out during rabi season of 2005-06 and 2006-07 in the Agronomy Research Farm of Amar Singh (P.G) College, Lalchaoti (U.P), to study the influence of four levels of irrigation [(no irrigation, irrigation at first critical stage of chickpea (pre-flowering stage), irrigation at second most critical stage of chickpea (pod formation), combination at first and second most critical stages of chickpea (pre-flowering stage and pod formation)] and three fertility gradients [(20 : 40 : 10 kg N, P and S/ha 40 : 60 : 20 kg N, P and S/ha and recommended dose of fertilizers (RDF) 20-60-20 (N P and S) for both the crops)] on chickpea and mustard sole and intercropping system with variety of Avrodhi (chickpea) and B-70 (mustard). Cropping system did not influence mustard DMP but it did with chickpea. The application of two irrigations (I-3) recorded the highest dry matter accumulation and application of recommended dose of fertilizers on area basis to both the crops (F-3) recorded the highest dry matter. Similar, influence also noticed in nutrient uptake and yield. The intercropping of chickpea and mustard in 4:1 ratio was significantly superior as compared to sole crops of either chickpea or mustard. Cultivation of chickpea was better as compared to mustard. Irrigation during pre-flowering and pod filling stage of chickpea resulted in higher yield. Application of recommended dose of fertilizers (20:60:20, N:P:S) on area basis to both the crops was also superior.
